Home / 863,213,952.82-1,191,186,344.82-486,848,045.56

Finding the Fourth Proportional to 863,213,952.82, 1,191,186,344.82 and 486,848,045.56

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Solution

The fourth proportional to 863,213,952.82, 1,191,186,344.82 and 486,848,045.56 is: 671,822,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,213,952.82 : 1,191,186,344.82 = 486,848,045.56 : x
  2. Step 2: Convert to fraction form
    863,213,952.82/1,191,186,344.82 = 486,848,045.56/x
  3. Step 3: Cross multiply
    863,213,952.82x = 1,191,186,344.82 × 486,848,045.56
  4. Step 4: Simplify right side
    863,213,952.82x = 579,926,743,873,377,152
  5. Step 5: Solve for x
    x = 579,926,743,873,377,152/863,213,952.82
  6. Step 6: Final answer
    x = 671,822,717.85

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.